---
title: List Model Lab project facet keys
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: Docs > API Reference > Model Lab API
---

# List Model Lab project facet keys{% #list-model-lab-project-facet-keys %}
Copy pageCopied
{% tab title="v2" %}
**Note**: This endpoint is in preview and is subject to change. If you have any feedback, contact [Datadog support](https://docs.datadoghq.com/help/).
| Datadog site      | API endpoint                                                              |
| ----------------- | ------------------------------------------------------------------------- |
| ap1.datadoghq.com | GET https://api.ap1.datadoghq.com/api/v2/model-lab-api/project-facet-keys |
| ap2.datadoghq.com | GET https://api.ap2.datadoghq.com/api/v2/model-lab-api/project-facet-keys |
| app.datadoghq.eu  | GET https://api.datadoghq.eu/api/v2/model-lab-api/project-facet-keys      |
| app.ddog-gov.com  | GET https://api.ddog-gov.com/api/v2/model-lab-api/project-facet-keys      |
| us2.ddog-gov.com  | GET https://api.us2.ddog-gov.com/api/v2/model-lab-api/project-facet-keys  |
| app.datadoghq.com | GET https://api.datadoghq.com/api/v2/model-lab-api/project-facet-keys     |
| us3.datadoghq.com | GET https://api.us3.datadoghq.com/api/v2/model-lab-api/project-facet-keys |
| us5.datadoghq.com | GET https://api.us5.datadoghq.com/api/v2/model-lab-api/project-facet-keys |

### Overview

List all available facet keys for filtering Model Lab projects.

### Response

{% tab title="200" %}
OK
{% tab title="Model" %}
Response containing available facet keys.

| Parent field | Field                        | Type     | Description                                                                    |
| ------------ | ---------------------------- | -------- | ------------------------------------------------------------------------------ |
|              | data [*required*]       | object   | A facet keys JSON:API resource object.                                         |
| data         | attributes [*required*] | object   | Available facet key names for filtering resources.                             |
| attributes   | metrics [*required*]    | [string] | The list of available metric facet keys.                                       |
| attributes   | parameters [*required*] | [string] | The list of available parameter facet keys.                                    |
| attributes   | tags [*required*]       | [string] | The list of available tag facet keys.                                          |
| data         | id [*required*]         | string   | The unique identifier of the facet keys resource.                              |
| data         | type [*required*]       | enum     | The JSON:API type for a facet keys resource. Allowed enum values: `facet_keys` |

{% /tab %}

{% tab title="Example" %}

```json
{
  "data": {
    "attributes": {
      "metrics": [
        "accuracy"
      ],
      "parameters": [
        "learning_rate"
      ],
      "tags": [
        "model"
      ]
    },
    "id": "1",
    "type": "facet_keys"
  }
}
```

{% /tab %}

{% /tab %}

{% tab title="429" %}
Too many requests
{% tab title="Model" %}
API error response.

| Field                    | Type     | Description       |
| ------------------------ | -------- | ----------------- |
| errors [*required*] | [string] | A list of errors. |

{% /tab %}

{% tab title="Example" %}

```json
{
  "errors": [
    "Bad Request"
  ]
}
```

{% /tab %}

{% /tab %}

{% tab title="500" %}
Internal Server Error
{% tab title="Model" %}
API error response.

| Parent field | Field                    | Type     | Description                                                                     |
| ------------ | ------------------------ | -------- | ------------------------------------------------------------------------------- |
|              | errors [*required*] | [object] | A list of errors.                                                               |
| errors       | detail                   | string   | A human-readable explanation specific to this occurrence of the error.          |
| errors       | meta                     | object   | Non-standard meta-information about the error                                   |
| errors       | source                   | object   | References to the source of the error.                                          |
| source       | header                   | string   | A string indicating the name of a single request header which caused the error. |
| source       | parameter                | string   | A string indicating which URI query parameter caused the error.                 |
| source       | pointer                  | string   | A JSON pointer to the value in the request document that caused the error.      |
| errors       | status                   | string   | Status code of the response.                                                    |
| errors       | title                    | string   | Short human-readable summary of the error.                                      |

{% /tab %}

{% tab title="Example" %}

```json
{
  "errors": [
    {
      "detail": "Missing required attribute in body",
      "meta": {},
      "source": {
        "header": "Authorization",
        "parameter": "limit",
        "pointer": "/data/attributes/title"
      },
      "status": "400",
      "title": "Bad Request"
    }
  ]
}
```

{% /tab %}

{% /tab %}

### Code Example

##### 
                  \# Curl command curl -X GET "https://api.datadoghq.com/api/v2/model-lab-api/project-facet-keys" \
-H "Accept: application/json" \
-H "DD-API-KEY: ${DD_API_KEY}" \
-H "DD-APPLICATION-KEY: ${DD_APP_KEY}" 
                
##### 

```python
"""
List Model Lab project facet keys returns "OK" response
"""

from datadog_api_client import ApiClient, Configuration
from datadog_api_client.v2.api.model_lab_api_api import ModelLabAPIApi

configuration = Configuration()
configuration.unstable_operations["list_model_lab_project_facet_keys"] = True
with ApiClient(configuration) as api_client:
    api_instance = ModelLabAPIApi(api_client)
    response = api_instance.list_model_lab_project_facet_keys()

    print(response)
```

#### Instructions

First [install the library and its dependencies](https://docs.datadoghq.com/api/latest.md?code-lang=python) and then save the example to `example.py` and run following commands:
    DD_SITE="datadoghq.com" DD_API_KEY="<API-KEY>" DD_APP_KEY="<APP-KEY>" python3 "example.py"
##### 

```ruby
# List Model Lab project facet keys returns "OK" response

require "datadog_api_client"
DatadogAPIClient.configure do |config|
  config.unstable_operations["v2.list_model_lab_project_facet_keys".to_sym] = true
end
api_instance = DatadogAPIClient::V2::ModelLabAPIAPI.new
p api_instance.list_model_lab_project_facet_keys()
```

#### Instructions

First [install the library and its dependencies](https://docs.datadoghq.com/api/latest.md?code-lang=ruby) and then save the example to `example.rb` and run following commands:
    DD_SITE="datadoghq.com" DD_API_KEY="<API-KEY>" DD_APP_KEY="<APP-KEY>" rb "example.rb"
##### 

```go
// List Model Lab project facet keys returns "OK" response

package main

import (
	"context"
	"encoding/json"
	"fmt"
	"os"

	"github.com/DataDog/datadog-api-client-go/v2/api/datadog"
	"github.com/DataDog/datadog-api-client-go/v2/api/datadogV2"
)

func main() {
	ctx := datadog.NewDefaultContext(context.Background())
	configuration := datadog.NewConfiguration()
	configuration.SetUnstableOperationEnabled("v2.ListModelLabProjectFacetKeys", true)
	apiClient := datadog.NewAPIClient(configuration)
	api := datadogV2.NewModelLabAPIApi(apiClient)
	resp, r, err := api.ListModelLabProjectFacetKeys(ctx)

	if err != nil {
		fmt.Fprintf(os.Stderr, "Error when calling `ModelLabAPIApi.ListModelLabProjectFacetKeys`: %v\n", err)
		fmt.Fprintf(os.Stderr, "Full HTTP response: %v\n", r)
	}

	responseContent, _ := json.MarshalIndent(resp, "", "  ")
	fmt.Fprintf(os.Stdout, "Response from `ModelLabAPIApi.ListModelLabProjectFacetKeys`:\n%s\n", responseContent)
}
```

#### Instructions

First [install the library and its dependencies](https://docs.datadoghq.com/api/latest.md?code-lang=go) and then save the example to `main.go` and run following commands:
    DD_SITE="datadoghq.com" DD_API_KEY="<API-KEY>" DD_APP_KEY="<APP-KEY>" go run "main.go"
##### 

```java
// List Model Lab project facet keys returns "OK" response

import com.datadog.api.client.ApiClient;
import com.datadog.api.client.ApiException;
import com.datadog.api.client.v2.api.ModelLabApiApi;
import com.datadog.api.client.v2.model.ModelLabFacetKeysResponse;

public class Example {
  public static void main(String[] args) {
    ApiClient defaultClient = ApiClient.getDefaultApiClient();
    defaultClient.setUnstableOperationEnabled("v2.listModelLabProjectFacetKeys", true);
    ModelLabApiApi apiInstance = new ModelLabApiApi(defaultClient);

    try {
      ModelLabFacetKeysResponse result = apiInstance.listModelLabProjectFacetKeys();
      System.out.println(result);
    } catch (ApiException e) {
      System.err.println("Exception when calling ModelLabApiApi#listModelLabProjectFacetKeys");
      System.err.println("Status code: " + e.getCode());
      System.err.println("Reason: " + e.getResponseBody());
      System.err.println("Response headers: " + e.getResponseHeaders());
      e.printStackTrace();
    }
  }
}
```

#### Instructions

First [install the library and its dependencies](https://docs.datadoghq.com/api/latest.md?code-lang=java) and then save the example to `Example.java` and run following commands:
    DD_SITE="datadoghq.com" DD_API_KEY="<API-KEY>" DD_APP_KEY="<APP-KEY>" java "Example.java"
##### 

```rust
// List Model Lab project facet keys returns "OK" response
use datadog_api_client::datadog;
use datadog_api_client::datadogV2::api_model_lab_api::ModelLabAPIAPI;

#[tokio::main]
async fn main() {
    let mut configuration = datadog::Configuration::new();
    configuration.set_unstable_operation_enabled("v2.ListModelLabProjectFacetKeys", true);
    let api = ModelLabAPIAPI::with_config(configuration);
    let resp = api.list_model_lab_project_facet_keys().await;
    if let Ok(value) = resp {
        println!("{:#?}", value);
    } else {
        println!("{:#?}", resp.unwrap_err());
    }
}
```

#### Instructions

First [install the library and its dependencies](https://docs.datadoghq.com/api/latest.md?code-lang=rust) and then save the example to `src/main.rs` and run following commands:
    DD_SITE="datadoghq.com" DD_API_KEY="<API-KEY>" DD_APP_KEY="<APP-KEY>" cargo run
##### 

```typescript
/**
 * List Model Lab project facet keys returns "OK" response
 */

import { client, v2 } from "@datadog/datadog-api-client";

const configuration = client.createConfiguration();
configuration.unstableOperations["v2.listModelLabProjectFacetKeys"] = true;
const apiInstance = new v2.ModelLabAPIApi(configuration);

apiInstance
  .listModelLabProjectFacetKeys()
  .then((data: v2.ModelLabFacetKeysResponse) => {
    console.log(
      "API called successfully. Returned data: " + JSON.stringify(data)
    );
  })
  .catch((error: any) => console.error(error));
```

#### Instructions

First [install the library and its dependencies](https://docs.datadoghq.com/api/latest.md?code-lang=typescript) and then save the example to `example.ts` and run following commands:
    DD_SITE="datadoghq.com" DD_API_KEY="<API-KEY>" DD_APP_KEY="<APP-KEY>" tsc "example.ts"
{% /tab %}